Rydberg atoms in intense electromagnetic radiation

Rydberg atoms in intense electromagnetic radiation PDF Author: Rutger Bastiaan Vrijen
Publisher:
ISBN: 9789090102382
Category :
Languages : en
Pages : 156

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Rydberg atoms in intense electromagnetic radiation

Rydberg atoms in intense electromagnetic radiation PDF Author: Rutger Bastiaan Vrijen
Publisher:
ISBN: 9789090102382
Category :
Languages : en
Pages : 156

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Book Description


Super-Intense Laser-Atom Physics IV

Super-Intense Laser-Atom Physics IV PDF Author: H.G. Muller
Publisher: Springer Science & Business Media
ISBN: 9780792340485
Category : Science
Languages : en
Pages : 630

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Book Description
Atoms in strong radiation fields are interesting objects for study, and the research field that concerns itself with this study is a comparatively young one. For a long period after the ~scovery of the photoelectric effect. it was not possible to generate electro magnetic fields that did more than perturb the atom only slightly, and (first-or~er) perturbation theory could perfectly explain what was going on at those low intensities. The development of the pulsed laser bas changed this state of affairs in a rather dramatic way, and fields can be applied that really have a large, or even dominant influence on atomic structure. In the latter case, w~ speak of super-intense fields. Since the interaction between atoms and electromagnetic waves is characterized by many parameters other than the light intensity, such as frequency, iQnization potential, orbit time, etc., it is actually quite difficult to define what is exactly meant by the term 'super-intense'. Obviously the term does not have an absolute meaning, and intensity should always be viewed in relation to other properties of the system. An atom in a radiation field can thus best be described in terms of various ratios of the quantities involved. The nature of the system sometimes drastically changes if the value of one of these parameters exceeds a certain critical value, and the new regime could be called super-intense with respect to that parameter.

Rydberg Atoms

Rydberg Atoms PDF Author: Thomas F. Gallagher
Publisher: Cambridge University Press
ISBN: 9780521021661
Category : Science
Languages : en
Pages : 512

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Book Description
This book provides a comprehensive description of the physics of Rydberg atoms, highlighting their remarkable properties by reference to their behavior in a wide range of physical situations. Following an overview of the basic properties of Rydberg atoms, their interactions with electric and magnetic fields are analyzed in detail. The collisions of Rydberg atoms with neutral and charged species are described, and the use of multichannel quantum defect theory in the study of Rydberg atomic systems is discussed.

Super-Intense Laser-Atom Physics

Super-Intense Laser-Atom Physics PDF Author: Bernard Piraux
Publisher: Springer Science & Business Media
ISBN: 9780792368632
Category : Science
Languages : en
Pages : 444

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Book Description
The study of atomic systems exposed to super-intense laser fields de fines an important area in atomic, molecular and optical physics. Although the concept of super-intense field has no absolute meaning, it is now usual to call an electromagnetic field super-intense when it exceeds the atomic binding field. In the case of the simplest atomic system, hydrogen in its 16 2 ground state, this occurs above an intensity of 3. 5 x 10 Wattfcm which is the atomic unit of intensity. Presently at the laboratory scale and in ex tremely short and tightly focussed laser pulses, the electric field strength 16 18 2 reaches peak values which are of the order of 10 - 10 Wattfcm in the infrared frequency regime, the prospect being that such peak intensities may be reached within a few years in a regime of much higher frequencies (XUV or even X). The interaction of such electromagnetic fields with an atomic system has a highly non-linear character which has led to the observation of to tally unexpected phenomena. There are three fundamental processes which have marked the beginning of an intensive research in the field of super intense laser-atom physics (SILAP). These processes which only involve one atomic electron are (i) the so-called above-threshold ionisation i. e.

Ultrafast Dynamics Driven by Intense Light Pulses

Ultrafast Dynamics Driven by Intense Light Pulses PDF Author: Markus Kitzler
Publisher: Springer
ISBN: 3319201735
Category : Science
Languages : en
Pages : 385

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Book Description
This book documents the recent vivid developments in the research field of ultrashort intense light pulses for probing and controlling ultrafast dynamics. The recent fascinating results in studying and controlling ultrafast dynamics in ever more complicated systems such as (bio-)molecules and structures of meso- to macroscopic sizes on ever shorter time-scales are presented. The book is written by some of the most eminent experimental and theoretical experts in the field. It covers the new groundbreaking research directions that were opened by the availability of new light sources such as fully controlled intense laser fields with durations down to a single oscillation cycle, short-wavelength laser-driven attosecond pulses and intense X-ray pulses from the upcoming free electron lasers. These light sources allowed the investigation of dynamics in atoms, molecules, clusters, on surfaces and very recently also in nanostructures and solids in new regimes of parameters which, in turn, led to the identification of completely new dynamics and methods for controlling it. Example topics covered by this book include the study of ultrafast processes in large molecules using attosecond pulses, control of ultrafast electron dynamics in solids with shaped femtosecond laser pulses, light-driven ultrafast plasmonic processes on surfaces and in nanostructures as well as research on atomic and molecular systems under intense X-ray radiation. This book is equally helpful for people who would like to step into this field (e.g. young researchers), for whom it provides a broad introduction, as well as for already experienced researchers who may enjoy the exhaustive discussion that covers the research on essentially all currently studied objects and with all available ultrafast pulse sources.

Multiphoton Processes in Atoms

Multiphoton Processes in Atoms PDF Author: Nikolai B. Delone
Publisher: Springer Science & Business Media
ISBN: 3642975097
Category : Science
Languages : en
Pages : 332

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Book Description
Multiphoton ionization of atoms in intense laser-light fields is gaining ground as a spectroscopic diagnostic tool. In this volume, Delone and Krainov present their and others' theoretical description of the process occurring in atoms under conditions of multi-photon impacts, in particular, the shift, broadening, and mixing of electronic states which complicate the interpretation of spectra. The topics of individual chapters include tunneling ionization, above-threshold ionization, ionization of multiply charged ions, resonance-enhenced ionization, super-intense radiation fields, and properties of Rydberg states in strong fields.

Super-Intense Laser—Atom Physics

Super-Intense Laser—Atom Physics PDF Author: A. L'Huillier
Publisher: Springer Science & Business Media
ISBN: 1461579635
Category : Science
Languages : en
Pages : 494

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Book Description
The rapid development of powerful pulsed lasers is at the origin of a conside rable interest in studying the response of an atom, a molecule (or a solid) to a strong electromagnetic field. It is now possible to produce at the laboratory scale, ultra-short 13 pulses with a duration of 100 femtoseconds (10- second) and a power of the order 12 of 1 terawatt (10 Watt). Under these conditions, very high peak intensities may be obtained and electric fields exceeding typical electron binding fields in atoms are generated. The interaction of an atom or a molecule with such electromagnetic fields has a highly non-linear character which leads to unexpected phenomena. Amongst them, - above-threshold ionization (ATI) i.e. the absorption of additional photons in excess of the minimal number necessary to overcome the ionization potential and its molecular counterpart, above-threshold dissociation (ATD); - generation of very high harmonics of the driving field; - stabilization of one-electron systems in strong fields. These processes were the main topics of two international meetings which were held in 1989 and 1991 in the United States under the common name SILAP (Super-Intense Laser-Atom Physics).

Simulation Study of Rydberg Atomic States Interacting with Electromagnetic Radiation for Use in Future Technological Applications

Simulation Study of Rydberg Atomic States Interacting with Electromagnetic Radiation for Use in Future Technological Applications PDF Author: Yi Zou
Publisher:
ISBN:
Category : Electrodynamics
Languages : en
Pages : 290

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Book Description


Multiphoton Processes in Atoms

Multiphoton Processes in Atoms PDF Author: N.B. Delone
Publisher: Springer Science & Business Media
ISBN: 3642572081
Category : Science
Languages : en
Pages : 320

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Book Description
This book presents a detailed, modern description of the ionization of atoms by strong laser radiation. The authors present descriptions of processes occurring in atoms under the action of strong electromagnetic radiation, in particular, the shift, broadening, and mixing of atomic states. The topics include tunneling ionization, above-threshold ionization, ionization of multiply charged ions, resonance-enhanced ionization, super-intense radiation fields, and properties of Rydberg states strongly perturbed by laser radiation.

Atoms in Electromagnetic Fields

Atoms in Electromagnetic Fields PDF Author: Claude Cohen-Tannoudji
Publisher: World Scientific
ISBN: 9789812560193
Category : Science
Languages : en
Pages : 772

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Book Description
Papers written during the last 40 years by Claude Cohen-Tannoudji and his collaborators on various physical effects which can be observed on atoms interacting with electromagnetic fields.